Optical imaging lens
A technology of optical imaging lens and imaging surface, applied in optics, optical components, instruments, etc., can solve the problem of difficult miniaturization of lens
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Embodiment 1
[0068] Such as Figure 1 to Figure 25 As shown, from the object side of the optical imaging lens to the image side of the optical imaging lens, the first lens, the second lens, the third lens and the fourth lens are included in sequence, the object side of the third lens is a concave surface, and the image of the third lens The side is convex; the fourth lens has negative refractive power; wherein, the maximum effective radius DT11 of the object side of the first lens and the aperture value fno of the optical imaging lens satisfy: 0.3mm<DT11 / fno<0.5mm; optical imaging The effective focal length f of the lens and the entrance pupil diameter EPD of the optical imaging lens satisfy: f / EPD<2.
[0069] By rationally allocating the focal power of each lens, it is beneficial to balance the aberration generated by the optical imaging lens and greatly increase the imaging quality of the optical imaging lens. Reasonable design of the focal power and surface shape of the first lens and ...
Embodiment 2
[0090] Such as Figure 1 to Figure 25 As shown, from the object side of the optical imaging lens to the image side of the optical imaging lens, the first lens, the second lens, the third lens and the fourth lens are included in sequence, the object side of the third lens is a concave surface, and the image of the third lens The side is convex; the fourth lens has negative refractive power; wherein, the maximum effective radius DT11 of the object side of the first lens and the aperture value fno of the optical imaging lens satisfy: 0.3mm<DT11 / fno<0.5mm; the first The maximum effective radius DT11 on the object side of the lens and half the diagonal length ImgH of the effective pixel area on the imaging surface of the optical imaging lens satisfy: DT11 / ImgH<0.4.
[0091] By rationally allocating the focal power of each lens, it is beneficial to balance the aberration generated by the optical imaging lens and greatly increase the imaging quality of the optical imaging lens. Reas...
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